module.exports = (err,ctx)=>{
    console.log(err,'err');
    let status = 500
    switch(err.code){
        case '10001':
            status = 400
            break;
        case '10002':
            status = 409
            break;  
        default:
            status = 500
    }
    ctx.status = status
    ctx.body  = err
}